Pith Number

pith:WNYNCNFQ

pith:2019:WNYNCNFQLC5JLLRXIT7W3OPELX

not attested not anchored not stored refs pending

Surfing: Iterative optimization over incrementally trained deep networks

Ganlin Song, John Lafferty, Zhou Fan

arxiv:1907.08653 v1 · 2019-07-19 · stat.ML · cs.LG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WNYNCNFQLC5JLLRXIT7W3OPELX}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:40:08.280450Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b370d134b058ba95ae3744ff6db9e45ddded3868adae435022702d08bca40454

Aliases

arxiv: 1907.08653 · arxiv_version: 1907.08653v1 · doi: 10.48550/arxiv.1907.08653 · pith_short_12: WNYNCNFQLC5J · pith_short_16: WNYNCNFQLC5JLLRX · pith_short_8: WNYNCNFQ

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/WNYNCNFQLC5JLLRXIT7W3OPELX \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: b370d134b058ba95ae3744ff6db9e45ddded3868adae435022702d08bca40454

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de6ce443733f7472438baa977e054ab12a303f4526a7db0ba8425397d3c63cdc",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2019-07-19T19:16:04Z",
    "title_canon_sha256": "b42763188db00282d92f853a9fca37e62a900fd78f675eb858c20378bae03e3f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.08653",
    "kind": "arxiv",
    "version": 1
  }
}